Research progress on underwater shock wave generation and diagnosis technology based on high-power laser

The study of underwater shock waves based on high-power laser is of great significance for understanding the interaction laws between lasers and matter in liquid environments, and it shows broad application potential in fields such as underwater detection and communication, and hydraulic mechanical design. By solving the problems of underwater environment construction and effective deposition of laser energy, this paper develops a target that can produce an underwater shock wave similar to that of point explosion based on numerical simulation. In addition, the established schlieren diagnostic system with the capability to adjust the diagnostic moment arbitrarily, can acquire four underwater shock wave evolution images in a single shot experiment, and as well as the wavefront travel time and pressure of shock wave. The research shall provide technical support for revealing the evolution laws of underwater shock waves.